The five most read articles in 2025

June 10, 2025A sudden drop in temperature in Lake Geneva over the Whitsun weekend is leaving swimmers feeling chilly: within a few days, the surface water temperature near the city of Geneva fell by around 8 degrees. This is due to a natural phenomenon that can be observed impressively on the Alplakes platform.

October 2, 2025Current studies shed light on which pesticides are particularly relevant for the pollution of Swiss watercourses and where they come from. 

April 3, 2025To predict toxic algal blooms, researchers from Eawag recommend a combination of species identification and chemical measurements. Now, a new study confirms that there is no magic formula and that, instead, specific indicator molecules are needed for each lake.

October 23, 2025A new website and two fact sheets provide up-to-date information on PFAS, the forever chemicals in the environment, and outline possible courses of action.